PM7346 datasheet(71/419 Pages) PMC

71 / 419 page

PM7346 S/UNI-QJET

DATASHEET

PMC-960835

ISSUE 6

SATURN QUAD USER NETWORK INTERFACE FOR J2, E3, T3

PMC-SIERRA, INC. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND ITS CUSTOMERS’ INTERNAL USE 50

Pin Name

Type

Pin No.

Function

CSB

Input

Active low Chip Select (CSB). This signal

must be low to enable S/UNI-QJET

(RDB and WRB determine register reads

and writes) then it should be tied to an

inverted version of RSTB.

WRB

Input

Active low Write Strobe (WRB). This signal

is pulsed low to enable a S/UNI-QJET

clocked into the addressed register on the

rising edge of WRB while CSB is low.

RDB

Input

Active low Read Enable (RDB). This signal

is pulsed low to enable a S/UNI-QJET

drives the D[7:0] bus with the contents of

the addressed register while RDB and

CSB are both low.

D[7]

D[6]

D[5]

D[4]

D[3]

D[2]

D[1]

D[0]

I/O

D12

C13

A14

B14

D13

C14

A15

B15

Bi-directional Data Bus (D[7:0]). The bi-

directional data bus D[7:0] is used during

S/UNI-QJET register read and write

accesses.

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